Home / 12,541.49-18,810.69-7,279.36

Finding the Fourth Proportional to 12,541.49, 18,810.69 and 7,279.36

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Solution

The fourth proportional to 12,541.49, 18,810.69 and 7,279.36 is: 10,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,541.49 : 18,810.69 = 7,279.36 : x
  2. Step 2: Convert to fraction form
    12,541.49/18,810.69 = 7,279.36/x
  3. Step 3: Cross multiply
    12,541.49x = 18,810.69 × 7,279.36
  4. Step 4: Simplify right side
    12,541.49x = 136,929,737.33
  5. Step 5: Solve for x
    x = 136,929,737.33/12,541.49
  6. Step 6: Final answer
    x = 10,918.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.